1 Land contracts or contracts for deed are a security agreement between a seller, called a Vendor, and a buyer, called a Vendee.  The Vendor agrees to sell a property by financing the purchase for the Vendee.
The two DNA strands are held together by interchain hydrogen bonds. H-bonds pair the bases in one chain to the complementary bases in the other chain. (A/T and G/C).
What bond hold the backbone of DNA together (sugar-phosphate)? Hydrogen bonds hold the base pairs, but I don&#39;t know the outside of the double helix.hat bond hold the backbone of DNA together (sugar-phosphate)? Hydrogen bonds hold the base pairs, but I don&#39;t know the outside of the double helix.